US Bridges

Logging Road over Stream

Good

Petersburg Census Area, Alaska · Mitkof Island · Structure no. 100521000023770

Built
2017
8 years old
Condition
Good
inspected August 2024
Type
Girder and Floorbeam System
Steel
Length
70 ft
1 main span
Daily traffic
50
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Logging Road over Stream is a steel girder and floorbeam system carrying Logging Road over Stream in Petersburg Census Area, Alaska. It was built in 2017, so it is 8 years old, younger than the Alaska average of 35.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 70 ft (21.3 m) long and 24 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesLogging Road
CrossesStream
LocationMitkof Island
RouteFederal Lands Road 6235
StateAlaska
Coordinates56.6909, -132.8295
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating44 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHL 93
Structure length70 ft (21.3 m)
Longest span69 ft (21 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2006)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Logging Road over Stream built?

It was built in 2017, making it 8 years old in 2025.

What condition is Logging Road over Stream in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Logging Road over Stream carry?

About 50 vehicles per day (2006 count).

How long is Logging Road over Stream?

The structure is 70 ft (21.3 m) long with a longest span of 69 ft (21 m) and a deck 24 ft wide.

Who owns Logging Road over Stream?

It is owned by the U.S. Forest Service.